A 34-year-old primigravida at 36 weeks gestation is found to have a frank breech presentation on ultrasound. Regarding the management and complications of breech presentation, all of the following statements are TRUE EXCEPT:

Explanation

## Analysis of Breech Presentation Management ### Correct Statement (The Exception) **Footling breech has a WORSE prognosis than frank breech for vaginal delivery** — this is the FALSE statement that serves as the correct answer to an "EXCEPT" question. ### Why Each TRUE Statement Is Correct **Key Point:** Frank breech is the most favorable type for vaginal delivery because the flexed hips and knees protect the fetus during descent. | Feature | Frank Breech | Footling Breech | |---------|--------------|------------------| | Hip position | Flexed | Extended | | Knee position | Flexed | Extended | | Vaginal delivery suitability | Most favorable | Least favorable | | Risk of cord prolapse | Lower | Higher | | Risk of head entrapment | Lower | Higher | **High-Yield:** The three TRUE statements are: 1. **ECV at 37 weeks** — Standard of care; success rate ~60% if performed at term [cite:ACOG Practice Bulletin 161] 2. **Planned cesarean at 39 weeks** — Term Breech Trial (2000) established this as standard in most developed countries, reducing perinatal mortality and serious neonatal morbidity 3. **Fetal weight >3800 g is a contraindication to vaginal breech delivery** — Risk of cephalopelvic disproportion and head entrapment increases significantly; this is a widely accepted criterion ### The Trap **Warning:** Students often confuse breech subtypes. Footling (complete) breech is the WORST type for vaginal delivery because: - Extended legs cannot protect the fetal body - Increased risk of cord prolapse (up to 15%) - Higher risk of head entrapment at delivery - Frank breech is BEST for vaginal delivery if criteria are met ### Clinical Pearl **Vaginal breech delivery criteria** (if attempted) require: - Maternal pelvis: gynecoid or android (not platypelloid or android) - Fetal weight: 2500–3800 g - Presentation: frank or complete breech (NOT footling) - No hyperextension of fetal head on ultrasound - Experienced attendant present **Mnemonic: BREECH VAGINAL DELIVERY CRITERIA — "SAFE FRANK"** - **S**elected cases only - **A**dequate pelvis (gynecoid/android) - **F**rank or complete breech (NOT footling) - **E**xperienced operator - **F**etal weight 2500–3800 g - **R**ecent ultrasound (no hyperextension) - **A**nterior position preferred - **N**o contraindications (e.g., nuchal arms) - **K**nee flexion (frank/complete)